57% (2002)

52% (1980)

62% (1988)

70% (1972)

70% (1997)

0% (1978)

57% (1978)

49% (1995)

55% (2006)

44% (1985)

63% (1975)

0% (1980)

76% (1989)

70% (1978)

32% (1982)

0% (1979)

40% (2002)

80% (1969)

62% (1972)

60% (1978)